<template>
  <table @click="handleMonthTableClick" class="month-table">
    <tbody>
      <tr>
        <td :class="getCellStyle(0)">
          <a class="cell">{{ lang('datePicker.months.jan') }}</a>
        </td>
        <td :class="getCellStyle(1)">
          <a class="cell">{{ lang('datePicker.months.feb') }}</a>
        </td>
        <td :class="getCellStyle(2)">
          <a class="cell">{{ lang('datePicker.months.mar') }}</a>
        </td>
        <td :class="getCellStyle(3)">
          <a class="cell">{{ lang('datePicker.months.apr') }}</a>
        </td>
      </tr>
      <tr>
        <td :class="getCellStyle(4)">
          <a class="cell">{{ lang('datePicker.months.may') }}</a>
        </td>
        <td :class="getCellStyle(5)">
          <a class="cell">{{ lang('datePicker.months.jun') }}</a>
        </td>
        <td :class="getCellStyle(6)">
          <a class="cell">{{ lang('datePicker.months.jul') }}</a>
        </td>
        <td :class="getCellStyle(7)">
          <a class="cell">{{ lang('datePicker.months.aug') }}</a>
        </td>
      </tr>
      <tr>
        <td :class="getCellStyle(8)">
          <a class="cell">{{ lang('datePicker.months.sep') }}</a>
        </td>
        <td :class="getCellStyle(9)">
          <a class="cell">{{ lang('datePicker.months.oct') }}</a>
        </td>
        <td :class="getCellStyle(10)">
          <a class="cell">{{ lang('datePicker.months.nov') }}</a>
        </td>
        <td :class="getCellStyle(11)">
          <a class="cell">{{ lang('datePicker.months.dec') }}</a>
        </td>
      </tr>
    </tbody>
  </table>
</template>

<script>
  import {DomUtils} from '../utils'
  import LangMixin from '../../../locales/mixin'

  export default {
    mixins: [LangMixin],
    props: {
      disabledDate: {},
      date: {},
      month: {
        type: Number
      }
    },
    methods: {

      getCellStyle (month) {
        const style = {}
        const date = new Date(this.date)

        date.setMonth(month)
        style.disabled = typeof this.disabledDate === 'function' &&
          this.disabledDate(date)
        style.current = this.month === month

        return style
      },

      handleMonthTableClick (event) {
        const target = event.target
        if (target.tagName !== 'A') return
        if (DomUtils.hasClass(target.parentNode, 'disabled')) return
        const column = target.parentNode.cellIndex
        const row = target.parentNode.parentNode.rowIndex
        const month = row * 4 + column

        this.$emit('pick', month)
      }
    }
  }
</script>
